Fig. 8. Confidence scores increase faster than relative-to-peers scores as residency progresses. The average normalized confidence scores (red ) and average normalized relative-to-peers scores (blue ) are shown for each month of residency. Likert scores were normalized to a 0–1 scale, where 0 is the minimum and 1 is the maximum attainable score. Only evaluations having both a usable confidence score and a relative-to-peers score were included (N = 4,892). The overall slopes of the two data sets are different (P < 0.001, Z-test statistic).